st: commands for random effects for continuous data

I always feel the need to apologise for asking basic questions!
Anyway here goes:
I've been using a population averaged approach to predicting continuous
outcomes in panel data (XTGEE), but I am now considering using a random
effects model, as the assumptions about the differences between panels
are less generalised.
Which commands are available in stata to deal with random effects for
continuous data? Xtmixed? Gllamm? Will I have to specify a correlation
structure as in xtgee?
Cheers
Seyi
Seyi Soremekun
PhD Student
Biological Sciences Department
University of Warwick CV4 7AL
+44 02476522473
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